公开(公告)号：ITVA990006A1

公开(公告)日：2000-09-18

申请号：ITVA990006

申请日：1999-03-18

Applicant: ST MICROELECTRONICS SRL

Inventor： BAGNI DANIELE ,  GIOVENZANA DAVIDE ,  PEZZONI LUCA

IPC: G06T7/20 ,  H04N7/26 ,  H04N7/50

Abstract: Through a comparison of the values of pixels of a first candidate predictor macroblock having pixels in homologous positions to those of a reference macroblock of identical position on the frame to that of the macroblock being estimated on a reference frame of the present sequence of picture frames, a pre-established cost function is evaluated for each comparison. The best predictor is the one producing the minimum value of cost function. The comparison may even include the summing to each predictor candidate of an update vector of smaller dimensions than the macroblocks, chosen among a plurality of pre-established update vectors, for accelerating the convergence process of the comparison.

公开(公告)号：IT1313382B1

公开(公告)日：2002-07-23

申请号：ITVA990006

申请日：1999-03-18

Applicant: ST MICROELECTRONICS SRL

Inventor： BAGNI DANIELE ,  GIOVENZANA DAVIDE ,  PEZZONI LUCA

IPC: G06T7/20 ,  H04N7/26 ,  H04N7/50

Abstract: Through a comparison of the values of pixels of a first candidate predictor macroblock having pixels in homologous positions to those of a reference macroblock of identical position on the frame to that of the macroblock being estimated on a reference frame of the present sequence of picture frames, a pre-established cost function is evaluated for each comparison. The best predictor is the one producing the minimum value of cost function. The comparison may even include the summing to each predictor candidate of an update vector of smaller dimensions than the macroblocks, chosen among a plurality of pre-established update vectors, for accelerating the convergence process of the comparison.

公开(公告)号：ITVA990006D0

公开(公告)日：1999-03-18

申请号：ITVA990006

申请日：1999-03-18

Applicant: ST MICROELECTRONICS SRL

Inventor： BAGNI DANIELE ,  GIOVENZANA DAVIDE ,  PEZZONI LUCA

IPC: G06T7/20 ,  H04N7/26 ,  H04N7/50

Abstract: Through a comparison of the values of pixels of a first candidate predictor macroblock having pixels in homologous positions to those of a reference macroblock of identical position on the frame to that of the macroblock being estimated on a reference frame of the present sequence of picture frames, a pre-established cost function is evaluated for each comparison. The best predictor is the one producing the minimum value of cost function. The comparison may even include the summing to each predictor candidate of an update vector of smaller dimensions than the macroblocks, chosen among a plurality of pre-established update vectors, for accelerating the convergence process of the comparison.